19
Modulation
The R-1 can transmit in three types of modulation — PPM
(FM), ZPCM and SPCM.
PPM (also referred to as FM) modulation should be selected
when using after-market receivers and when using JR FM
receivers, such as the R200 or the 223.
ZPCM is Pulse Code Modulation with a 512 step resolution
and is used with JR’s 233 receiver.
SPCM is Pulse Code Modulation with a 1024 step resolu-
tion and is activated when using the JR 330 PCM receiver.
Be sure to select the correct modulation type for the receiver
being used.
In System Mode, access the Modulation function by moving
the cursor to MODULAT. and pressing the MODE LIST key.
[MODULAT.]
MODEL 1
SPCM modulation
Press the CLR key to return
to PPMmodulations
Indicates model selected
Press the DOWN key to go
to Fail-Safe (PCM only)
Press the UP key to go to
Model Reset
Indicates modulation
type selected
Press the + or – keys to
select the modulation type:
PPM, SPCM, or ZPCM
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